Black tank sewer flush adapter



FIG. 1 is a rear perspective view of a black tank sewer flush adapter showing our new design;

FIG. 2 is an exploded view of FIG. 1 ;

FIG. 3 is a front perspective view of the black tank sewer flush adapter shown in FIG. 1 ;

FIG. 4 is an exploded view of FIG. 3 ;

FIG. 5 is a side view of the black tank sewer flush adapter shown in FIG. 1 ;

FIG. 6 is an exploded view of FIG. 5 ;

FIG. 7 is a top view of the black tank sewer flush adapter shown in FIG. 1 ;

FIG. 8 is an exploded view of FIG. 7 ;

FIG. 9 is a bottom view of the black tank sewer flush adapter shown in FIG. 1 ; and,

FIG. 10 is an exploded view of FIG. 9 .

The broken lines depict environmental subject matter that forms no part of the claimed design. 

CLAIM I claim the ornamental design for the black tank sewer flush adapter, as shown and described. 